Wulfstan and athere sail to the Baltic and the North Cape.
_cir._ 900.

Gunbioern discovers Greenland.
912-30.

The geographer Mas'udi describes the lands of Islam, from Spain to Further India, in his "Meadows of Gold." 921.

Ahmed Ibn Fozlan describes the Russians.
969.

Ibn Haukal composes his book on Ways.
985.